1  /* Tests for _FloatN / _FloatNx types: test erroneous code.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "" } */
       4  /* { dg-add-options float32 } */
       5  /* { dg-add-options float64 } */
       6  /* { dg-add-options float32x } */
       7  /* { dg-require-effective-target float32 } */
       8  /* { dg-require-effective-target float32x } */
       9  /* { dg-require-effective-target float64 } */
      10  
      11  /* _FloatN, _FloatNx and standard types are incompatible even if they
      12     have the same ABI.  */
      13  
      14  extern float a; /* { dg-message "previous declaration" } */
      15  extern _Float32 a; /* { dg-error "conflicting" } */
      16  
      17  extern double b; /* { dg-message "previous declaration" } */
      18  extern _Float32x b; /* { dg-error "conflicting" } */
      19  
      20  extern _Float64 c; /* { dg-message "previous declaration" } */
      21  extern _Float32x c; /* { dg-error "conflicting" } */
      22  
      23  /* These types are not promoted in old-style function definitions.  */
      24  
      25  void f (_Float32);
      26  void
      27  f (x)
      28       _Float32 x;
      29  {
      30  }
      31  
      32  void g (double); /* { dg-error "prototype declaration" } */
      33  void
      34  g (x)
      35       _Float32 x; /* { dg-error "match prototype" } */
      36  {
      37  }
      38  
      39  void h (_Float64); /* { dg-error "prototype declaration" } */
      40  void
      41  h (x)
      42       _Float32 x; /* { dg-error "match prototype" } */
      43  {
      44  }